look, i know this not a strictly professional, technique-related comment, but sweet baby jesus, this is like one of the hottest things i've seen. better than the original movie redhead, catsuit, lara. yeah. this is epic

Nice job with the lighting!I guess you're probably short of space, but if you move a few more feet from the background, you'll loose that distracting shadow. It will also allow you to light the background seperately for a nice effect.Good luck!